Reddit reviews Good and Simple: Recipes to Eat Well and Thrive: A Cookbook

I'm not very strict in my paleo diet. My girlfriend wants to eat at least a few days every week without meat, and she thinks too much fat isn't healthy and maybe more importantly, doesn't like too much fat either.

We had some arguments about this, the best advise I can give you is to put in some effort. Find recipes that you both like, try to cook for her every once in a while. I gave my girlfriend this book that lies somewhere in between vegetarianism and Paleo (it's got some things that match both and some that don't):
https://www.amazon.com/Good-Simple-Recipes-Well-Thrive/dp/1101905506/ref=sr_1_2?keywords=hemsley+hemsley&qid=1554382194&s=gateway&sr=8-2

We still make a few of the recipes from this book, I wouldn't say it's a great book that will solve your problems, but finding a book that makes a compromise between your diets and gifting that to her, that gives off a signal that you take this seriously and want to work on it with her.